Valve lifter



Feb. 1o, 1931. I J s. FRY; 1 1,791,961'

VALVE LIFTER Filed Jan. 17, 1930 INVENTOR QZ/SFL-He BY Q .um

ATTORNEY Patented Feb. 1(1),'1v931 Y i il y i l f VUNITEI) -STTESAPA-"N'I' '.FFICE y Y JAsoN s. ravnbrsncnnlirnnrofonmronma I i v I IVALVE mr'rnnY K Application filed .Tawny-17,' 1930. seriai no. 421.467.

This invention relates to tools usedin conjectionable features atpresent encountered by nection with the valves of gas engines toenproviding atool head, usable on various liftable the valve stems to bedisassociated from ing devices, by means of which,v when it is theirsprings andthe loclring-meansthereof desiredtoremove a valve the springand o when it is desiredto remove the valves for washer retaining cupmay be easily lifted grinding or replacement.l V Y Vand the washers;are-then caught and held In engines used on various different makesfrom` dropping; and when it is .desired to of motor vehicles the valvespring ofi each replace the valvethe washers are supported Y valve isseated in a' hollow cone shaped. cup vvand guided into place in the stemgroove at which is held inrplaceo'n the valvestembya -theLsame time 4asthe retaining-cup is first 60 pair of opposed split washers offrustoconiraised and then lowered. v Valve removing cal form, whichseatfin a groove cut in the and replacing operations may therefore bevalve'stem and which arefthen held indisaccomplished inanv almostinstantaneous placement by the cup into which said washmanner withoutanytrouble and without the ers wedgingly lit. Thelifting-.of thecup dangerof the washers dropping out of place 65 against fthe pressure ofthespring frees the orbecoming lost. i washers, which then fall out of.place of .A further object of theinvention is toV prothemselves. It istherefore a very easy mat. duce a simple and inexpensive device and yetterto release the valve'stem and remove the one ywhich will beexceedingly `efective for valve, but the trouble isthat thewashersthen vthe' purpose for which it is designed. l "7.0.

dropping from place, as above stated, are These, objects I accomplish bymeans, of aptvt-o fall onto the engine parts below and' suchV structureand. 4relative arrangementof-V vfrequently become lost,-a'nd causetrouble. Y parts as will fully appear bya perusal 'of Putting thewashers back into place pre- :the following. specification and claims.

sents greater diluculties, since the cup musty In the drawings similarcharacters of refer- 75 be held .raised against thepressure ofthe enceindicatecorresponding parts in the sevspring,'while the washersareVplaced in thel eral views; v f stem groove Vand held there until the.cup is Fig. 1 is a sectional elevation ofl my'imallowed to dropl overthe washers to engage 'proved tool head shown in connection with a u andprevent displacementof thesame. Ow- :manipulatingor liftingv device andoperating so ing. to the cramped quarters in :which the -onavalvetoenable `thesame to be removed. parts are located and to the naturaltendencyv Fig.2is "a similar view somewhat enlarged of said washers todrop out of place of them-r showing'tphe` devicejarranged'to support theselves it isV a hard if not impossible jobto".washersgrin'ga-replacingpositiom-and as inisuccessfully holdv thewashers ".inplace 1 hy.V tially yoperating on the valve and itscooper-4e5 d hand. It is therefore customary to dip said ating parts to replacethe washers. washers in grease before placing'them in. the lFig` 3is .asimilar view illustrating the final groove, lso that thesticlinessaofthe grease stepof replacing the washers. v .Y y v willtemporarily-holdthe washers in placeV Fig Agis Va side view partlyVbroken out 19' while the cup is being furthermanipulated;l sho f the.washenguiding`- and locatingA t This operation vtakes time andfrequently ele ntlofthe tool. f Y y gives trouble, and must sometimesberrepeated y., ig`.. 5i s Aabottom plan viewl of the same. oneor moretimes beforefthe desired'-"results-.1` `.Referring.,now@moreparticularly to the Vare obtained.` The laborfcosts inci'denttocharactersofreference on the'drawings, they valve grinding or replacingLVoperationswith. numeralyl'denotes the body of the tool headV gstructures of this type, are .therefore very a `tubular member providedonits upper vhigh andl out of proportion to-thecharacter vendrwith anenlarged cup 2. This cup is reof work actually per-formed. cessed aboutits periphery YV to receive and The principal object of my mventionvis"support ,the rim if the hollow cone-shaped toavoid theabovenamedwdiiculty, ,and obcupL `slidable on the valve stem 4 .195 yand forms the seat for the lower end of the valve spring 5. Adjacent itslower end this stem is provided with a circumferential groove 6, whichforms the seat for the pair of vertically split washers 7. The outersides of these washers have a slope corresponding to that of the bore ofthe 4cup 3i: and are adapted to lit part way-.intonthetsame, so thatwhen a downward pressureis,..` exerted on the cup it tends. towedggngly,113 gage the washers and hold the same snugly in their retaining groovein the stem.

The body 1 is rigidly fixed on one end of a suitable lever or lifting..device,A Abei-ngi preferably mounted on the outer end of one lrin` of astandard valve lifting-tool which'i consists essentially of a pairofcrossed 'arms 8 pivoted. together intermediatev their ends. The arms .atthe endsto which thebodyds fixed are adapted `to project I betweenthevalvestem and a rigid engine part-below, so. thatvf'hile one Varnrisengaged 'withI said.V part theV body may be engaged with thevalvezspring cup., On bringing'the opposite ends of the arms togethertherefore the body@ will be raisedv and the valve spring` will-be'.compressed, the top being raised clear of the washers so that the latterdrop from about Y the stem and into the cup 2 wh'ere-` they are ofcourse retained against "dropping further.-

The valve stemis therefore free of the springA and the retainingncup andcan. easily'be re- The above parts therefore are all 'that'are 5 neededas farr as Ythe removaloffthei valve is concerned. Then replacing thevalve Aand washers however additional parts Iare' neces'- sary and 'areprovided'jas follows:

Adapted 'to ren'iovably seat in they bottom offthe cup ,Q .is `a ring 9'whose 'bore 10-is circular on top' and of suiiicient diameter-to freelyreceive the washers .7 therein,y being substantially the sainegsize asthe bottom boreof the cone portion ofthe cup 3;V Said bore 1() howeverflares outwardly towardthe bottom at its opposite ends vas .shown atlll,so that said bore is Vof"oblong form atthef bottom. Depending fronrinside theY ringv and' disposed in y opposed relation tol Veach other atthe minoraxis ofjthebore 10 areV lingers 12, `ef\;t endi`ng toadjacentjthegtop of" the ring and4 having their opposite sides slopingvtoward.each` other atm'the top, as shown in Figa; Theselingersare'joine'd at the bottom somev distance'b'elqw the bottomI ofthe ringbya cross bar 1 3., l f f l Slidable in the body belowthlecup2xis,a plunger 14:, boredY outto receive fthe-valve stem andslotted'down .its sides a` certain distance from the` top as atl to4receive the cross arm and fingerl unit which fitsfr'eely inthe bore ofthe body voccupiedy thef plunger. rlhe topof the plungerisnnorf mallyone. level with thebettoln of thebup 2 and is held against furtherdownward movement by cooperating shoulders 16 on the plunger and body.The bottom of the plunger, which is normally some distance below thebody, is provided with a flat head 17 of suitable form which serves as alinger presser member and also limits the upward movement ofthe plunger.

In. operation when it 'isldesired toa'eplace hewashels in position aboutthe valve stem. the ringm9 isfirst inserted in the cup 2, with the.crossibarr 13 down and so that it engages theslotl. The washer elementsare then inserted in the ring to the sides of the fingers whichholdY.tile/nip.A in. spaced relation said washers being disposed so that theyface upwardlyr inltheir normalgpositions and rest on thexbottomofj the.cup2 and` alsoonthe top of theplunger 14.. Theicupisthen seated inposition in therecess of the cup. 2. Assuming-thatvth'e valve`stem.is.in.position in the engine block the spring 5 is placedthereabout and temporarily: heldin positionv while the tooldsmanipulatedso.that thecup 3 passes ovenithe-.loxverend of the valve stemand engagesthespring. A further raising of the tool'compressesthespring, this raising movement being limited .byV the engagement ofthestem with the .cross bar 13, though it, is notnecessary.toraisethecup this far after `experience has dictated; the amount of raisinglactuallyinecessary to obtainthe desired results;` Vhensthe, springV hasbeen com pressedand .the cup` 3 raised the necessary distanceiitis heldraised .while the plunger 14' is pressedfupwardly with one lin ger. Thismovement-:of theplunger raisesthe washers relative tothe .cupi and'atthesame time brings them together somewhat owing, to the overhangingslope of thebore ofthe ring against which: thewashersl bear.` rIhewashers arc therefore-forcedgto enter the cup 5, which continnestobringnthem together orinto the stem` groove.V If the groove is not thenexactly. lined upwitlr the-cup 3 Va lowering of the toolfwlrile;`holding .the plunger immovablerela-tive to sadtool willA at once causethewashers to: be final-ly pressedinto the groovebythe downward:movement of the cup fa'ndits 4inwardwedging .action on the washers. The.plunger is then released and the tool nWi-thdrawlr.

From `the .foregoing description itl will `be readily,l seen that; I:have produced` such a device,` as substantiallyV fulfills the objects ofthe invention` as set Y. forth 'herein'.`

Thileth'is specificationsets forth in detail the` present! and:preferredV construction of thedevice7 still in'gpractice such deviationsfrom.` suchidetail may. bev resorte d to las do not form av departurefromV the spirit. ofthe ,invention, as'deined: by the appended claims.

Having thus d'escribedvimyy invention. what I claim as new and usefulland desire to secure bygLetters Ratchet is:

l. YA'''lifter"foi-7avalve having a hollow stem of the valve, saidwashers being in dependent of but held in place about the groove by saidcup; said lifter including a.

body adapted to be engaged with the cup to enable the same to be slidalong the stem, lifting jaws associated with the body, means in the bodyfor supporting the vwashers in position so that they will also bedisposed about the stem in spaced relation to the cup, andinstrumentalities in the body for then lifting the washers and at thesame time caus ing them to be contracted about the stern without furthermoving the cup. y

2. A lifter for a valve having a hollow spring-seating cup slidablethereon, and ver. tically split washers adaptedtosurround and engage acircumferential groove in the stem of the valve, said washers beingindependent of but held in place about the groove by said cup; saidlifter including a body adapted to be engaged with the cup to enable thesame to be slid along the stem, lifting jaws associated with the body,means in the body for supporting the washers in position so that theywill also be disposed about the stem in spaced relation to thecup, meansin the body for lifting the washers without further mov-v ing the cup,and means for causing the washf ers to also move toward each other so asto cause them to enter the cup and closely en# said cup Vsaid lifterincluding a body formed with a cup on its upper end adapted to en? gageand support theV springv retaining cup y at its rnn; the washers beingadapted to rest Y on the bottom of the body-cup, lifting'jaws associatedVwith the body', means inthe body holding the washers in spaced relationto other.

, spring-seating cup slidable thereon, and ver- Y fe f: DL)

each other, and means slidable lengthwise in the body below the cupthereof for en.

gagement with the washers to raise'the same relative to said cup.

4. A structure as in Vclaim 3, with means v formed as a unit wlthsaidwasher spacing means for limiting the extent towhich the springretaining cupmay be lifted along the valve stem with the*v correspondingmovement of the body.

5. A structure as in claim 3 with means' formed as a unit with saidwasher .spacing means for causing the Washers, as they are thus raised,to be also moved toward each 6. A lifter for a .valve having aV hollow-a rmg removably mounted in the body-cup to receive the washers therein,the bore of said ring at the top being substantially the same as that ofthe spring-seating cup at the bottom; the ring-bore tapering outwardlyand downwardly at its opposite ends, opposed lingers depending frominside the ring mid- Y way between said ends, to hold the washers inspaced relation to each other, and means in the bodyv below the ring forraising the washers from their seated position in the body-cup.

7. A lifterV for a valve having a hollow spring-seating cup slidablethereon, and vertically split washers adapted t0 surround and engage acircumferential groove in the stem of the valve, said washers beingindependent of but held in place `about the, Vgroove by said cup; saidlifter including a body formed witha cup on its upper end adapted toengagejand support the spring retaining cup at its rim; the washersbeing adapted-to rest on the bottom of the bodycup, lifting jawsAassociated with the body, a'ring removably mounted in the body-cup` toreceive the washers therein, the bore of said ring at the top beingsubstantially the same as that of the spring-seating cup at the bottom;the ring-bore tapering outwardly and downwardly at its opposite ends,opposed fingers depending from inside the ring midway between said ends,to hold the washers in spaced relation to each other, a crossbarconnecting the lower ends of the ngers, and a tubular plungerslidablymounted in the body below the cup thereof,` said plunger being slottedlfrom the top down to slidably receive thecrossbar.'

In testimony whereofl afIiX my signature. JASON S. FRYE.

tically split washers adapted to surround Y ioo

